Display screen or portion thereof with graphical user interface



The FIGURE is a front view of a display screen or portion thereof with graphical user interface showing my new design.

The dashed broken lines in the FIGURE exterior to the display screen show an electronic device to provide environment and form no part of the claimed design. The remaining dashed broken lines in the FIGURE show portions of the graphical user interface that form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with graphical user interface, as shown and described. 